linux-kernel - RE: Is Debug Store supposed to default to Y?

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Message-ID: <029E5BE7F699594398CA44E3DDF554440290A9AA@swsmsx413.ger.corp.intel.com>
Date:	Thu, 16 Oct 2008 09:34:26 +0100
From:	"Metzger, Markus T" <markus.t.metzger@...el.com>
To:	"Frans Pop" <elendil@...net.nl>, <linux-kernel@...r.kernel.org>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	<markus.t.metzger@...il.com>
Subject: RE: Is Debug Store supposed to default to Y?

>-----Original Message-----
>From: Frans Pop [mailto:elendil@...net.nl] 
>Sent: Donnerstag, 16. Oktober 2008 10:21


>Both CONFIG_X86_DS and X86_PTRACE_BTS currently default to yes.
>Is that intended?
>
>The help text is a bit short on info to help users determine if they 
>really need/want these options. What will I be missing if I 
>don't enable 
>them on a regular desktop system? What is their cost?

I sent an rfc for an improved help text yesterday:
http://lkml.org/lkml/2008/10/15/192.
I hope this answeres your questions.

See also the discussion with Roland Dreier on the same topic:
http://lkml.org/lkml/2008/10/16/56
http://lkml.org/lkml/2008/10/16/61

regards,
markus.


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